Although I think this is a grand idea, the thought of having a sticker anywhere on our building is tacky to say the least. If the Posties were diligent they might read it, but my guess is that if they have carried the post thus far they will still want to be rid of it! It's like fast food, and all the rubbish sold in supermarkets, it is not for the benefit of the CUSTOMER, whose welfare seems to have gone out of the window to be replaced by greed and competition between the huge consorteums that invade our privacy at every opportunity and from every quarter.